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HClNC Vegetation Classification & mapping Project: Volume 1: Vegetation Classification Technical Report 4.3.5.3 DRY SCLeROPHYLL FOReSTS Shrub / grass subformation MU 58 — Forest Oak / Thin-leaved Stringybark / Grey Gum shrub / grass open forest of escarpments of the Lower North Coast Open forests to woodlands with a mixed canopy characterised by Eucalyptus eugenioides, E. biturbinata and Angophora subvelutina, and commonly including E. tereticornis. These forests are also characterised by a small tree layer dominated by Allocasuarina torulosa and commonly including Acacia maidenii. The understorey generally consists of an open shrub layer with various shrubs, including Indigofera australis, Rubus parvifolius, Olearia viscidula and Breynia oblongifolia, and scrambling climbers such as Hardenbergia violacea, Hibbertia scandens and Geitonoplesium cymosum. The ground layer is predominately grassy and dominated by Themeda australis and Cymbopogon refractus, with various other species including Oplismenus aemulus and Poa sieberiana also common. The ground layer also includes a diverse range of forbs and graminoids, including Pratia purpurascens, Lomandra longifolia, Dianella caerulea, Plectranthus parviflorus and Desmodium and Glycine spp. No weed species were recorded in more than 25% of sites in this community. Within the study area, this community occurs on foothills and escarpment of the Lower North Coast and Northern Tablelands at mid elevations, mainly on conglomerate substrates. MU 59 — White Mahogany / Spotted Gum / Grey Myrtle shrubby open forest of the Central and Lower Hunter Valley Dry sclerophyll open forests, with elements of Hunter Valley dry rainforest, with a canopy dominated by Eucalyptus acmenoides, Corymbia maculata and Backhousia myrtifolia. This community is also characterised by a diverse range of taller shrubs and small trees with a subtropical influence, including Notelaea longifolia, Clerodendrum tomentosum, Alectryon subcinereus, Claoxylon australe, Streblus brunonianus and Brachychiton populneus, with various climbers such as Pandorea pandorana, Cissus opaca, C. antarctica and Cayratia clematidea. An open shrub layer is generally also present and common species include Breynia oblongifolia, Maytenus silvestris and Solanum stelligerum. The ground layer typically consists of grasses, such as Microlaena stipoides, Oplismenus aemulus and Entolasia marginata; ferns, including Adiantum aethiopicum, Doodia aspera and Pellaea falcata; along with various, sparse forbs and graminoids. A number of naturalised species were commonly recorded in this community with the most common being Senecio madagascariensis (Fireweed, 45%), Bidens pilosa (Cobbler’s Pegs, 38%), Cirsium vulgare (Spear Thistle, 34%), Lantana camara (Lantana, 34%) and Solanum nigrum (Black-berry Nightshade, 34%). This community occurs in the Central and Lower Hunter Valley in gullies and on lower slopes, mainly on sandstone substrates and at mid to lower elevations. MU 60 — Large-fruited Grey Gum / Grey Box grassy open forest of sandstone ranges of the Sydney Basin Open forests characterised by Eucalyptus punctata in association with E. molucanna and a small tree layer, including Allocasuarina torulosa and Clerodendrum tomentosum. The understorey is generally shrubby and may include Bursaria spinosa, Breynia oblongifolia, 82
83 CHaPTeR 4 Results Rubus parvifolius and Notelaea longifolia, along with various, sparse climbers, including Clematis glycinoides, Cayratia clematidea and Eustrephus latifolius. The ground layer is typically grassy and characterised by a range of species, including Oplismenus aemulus, Microlaena stipoides, Themeda australis and Imperata cylindrica. Various small ferns and forbs are also common in the ground layer, including Adiantum aethiopicum, Cheilanthes sieberi, Pratia purpurascens and Dichondra repens. As with MU 58, a range of naturalised species were commonly recorded in this community with the most frequent being Sida rhombifolia (Paddy’s Lucerne, 28%), Gomphocarpus fruticosus (Narrow-leaved Cotton Bush, 28%), Lantana camara (Lantana, 38%), Senecio madagascariensis (Fireweed, 48%), Sonchus oleraceus (Common Sowthistle, 38%), Bidens pilosa (Cobbler’s Pegs, 41%) and Hypochaeris radicata (Catsear, 62%). Within the study area, this community occurs in the Central Hunter Valley, northern Yengo and northern Wollemi areas at mid to low elevations on sandstones and siltstones. MU 61 — White Box shrubby woodland with Semi-Evergreen Vine Thicket elements near Glenbawn Dam Sclerophyll woodlands, including elements of vine thicket, with a canopy dominated by Eucalyptus albens and small trees, including Alectryon oleifolius, Geijera parviflora and Clerodendrum tomentosum. This community is also characterised by a diverse range of vines, including Marsdenia flavescens, Parsonsia eucalyptophylla, P. lanceolata, Cissus opaca and Pandorea pandorana. The understorey is typically shrubby with characteristic species such as Notelaea macrocarpa, Olearia elliptica, Rhagodia parabolica and Spartothamnella juncea. The ground layer is sparsely grassy with the dominant grasses Austrostipa verticillata and Austrodanthonia fulva, and typical ferns Pellaea falcata and Urtica incisa. Common naturalised species recorded in this community were Conyza sumatrensis (Tall Fleabane, 67%), Cirsium vulgare (Spear Thistle, 47%), Asphodelus fistulosus (Onion Weed, 33%), Senecio madagascariensis (Fireweed, 33%) and Opuntia stricta var. stricta (Common Prickly Pear, 100%). This community is only recorded in the Glenbawn Dam area in the Upper Hunter Valley. MU 62 — White Box / Blackthorn shrubby woodland of western Blue Mountains Open forests to woodlands dominated by Eucalyptus albens with a small tree layer including Brachychiton populneus and Acacia implexa. The understorey is characteristically shrubby and may include Cassinia species D (recorded in only 0.2% of sites outside of this community), Bursaria spinosa, Macrozamia communis and Melichrus urceolatus. The understorey commonly consists of a range of forbs and graminoids with common species including Plantago debilis, Dichondra repens, Stellaria pungens and Lomandra multiflora. Common naturalised species recorded in this community included Trifolium arvense (Haresfoot Clover, 33%) and Cynoglossum australe var. australe (33%). Within the study area, this community occurs on sandstone ranges of the western Blue Mountains and Wollemi NP at mid elevations. This community is of particular conservation significance as it is the only community in this study in which the rare species Prostanthera discolor has been recorded, although it does not appear to be common in this area.
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Hunter, Central & Lower North Coast
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Classification Expert Review Panel
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3.4 Vegetation community analysis .
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List of abbreviations API aerial ph
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HClNC Vegetation Classification & m
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CHaPter 2 Vegetation of the study a
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CHaPTeR 3 Method of data collection
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BIBLIOGRaPHY Anderson, R. H. (1961)
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